CC is NOT correlated to Horsepower. Cc is merely the capacity of that engine, NO relationship to horsepower.
There isn't a set displacement to horsepower ratio - hence, horsepower can't be determined by displacement alone.
There is no direct correlation between horsepower and a 205cc engine but most produce around 5 to 6 horsepower. The actual output varies based on individual engine designs.
About 5 horse power
6.5hp = 205cc
7 horses
The Vanguard series is rated at 6.5 HP. Most small engines these days are no longer rated by HP but, rather torque. Several models of Briggs 205cc engines are rated at either 8 or 9 ft/lbs of torque. I can also add that the "Intek" and "Polar Force" series of the 205cc class are rated at 9 ft/lbs torque and 7.5 HP.
340 Horsepower 340 Horsepower
1001 horsepower
160 horsepower
43 horsepower
170 horsepower
The 2009 Grizzly is available in several different horsepower configurations. The standard horsepower is 225. There were options for as much as 360 horsepower.